Normal Operation
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The occupant classification sensor (OCS) is used to classify the front passenger seat occupant in the event of a deployable impact. Refer to Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) .
The OCS system monitors the 4 OCS weight sensors bolts and circuity for faults. If the occupant classification system module (OCSM) detects an obstruction, an upward force on the passenger seat for 60 seconds, it will store diagnostic trouble code (DTC) B229B in memory and send a message to the restraints control module (RCM). The RCM will store DTC B2290 in memory and send a message to the instrument cluster module to illuminate the air bag warning indicator.
- DTC B229B Occupant Classification System Obstruction - If the OCSM detects a negative force on one or more OCS weight sensor bolt(s) (weight sensors), it will set this DTC.
This pinpoint test is intended to diagnose the following:
- Foreign object placed under or contacting the passenger seat